Mathematics for IGCSE & O level - Ratio And Proportion (Section 3 - No. 25)

Two numbers are in the ratio 3:7. The sum of the numbers is 60. What is the smaller number?

9

18

21

30

Тайлбар

3 + 7 = 10. Then, 60/10 = 6. Then, 3 * 6 = 18.

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